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Hydration clinical trials

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NCT ID: NCT03525470 Completed - Hydration Clinical Trials

Autonomic Adaptations to Hydration and Brain Functioning

Start date: January 1, 2016
Phase: N/A
Study type: Interventional

The influence of relatively small decreases in hydration status have been little studied. On two occasions subjects will be allowed to lose about 0,5% of their body weight and one occasion 300ml of water will be consumed. Functional MRI will be used to monitor brain functioning when performing a mental arithmetic task. Heart rate variability will be monitored and related to differences in brain functioning when water has and has not been drunk

NCT ID: NCT02671149 Completed - Cognition Clinical Trials

The Effect of Small Changes in Hydration on Cognition

Start date: September 2015
Phase: N/A
Study type: Interventional

The aim of this study is to determine whether drinking plain water when mildly dehydrated benefits cognitive performance and mood. Volunteers undergo a dehydration protocol designed to result in minor dehydration. While some participants receive two 150ml drinks of water others do not. Differences in cognitive functioning are assessed.

NCT ID: NCT02160873 Completed - Hydration Clinical Trials

Nighttime Feeding and Morning Endurance Performance

Start date: June 2014
Phase: N/A
Study type: Interventional

The purpose of this study is to investigate the influence of a nighttime feeding on next morning running performance, hydration status, and exercise metabolism in female endurance athletes. Specifically, the effect of a chocolate milk beverage will be examined versus a non-nutritive, flavor-matched placebo. The investigators hypothesize that the nighttime consumption of chocolate milk, a whole food complex, will result in improved next morning running performance versus placebo. Secondarily, the investigators hypothesize that any potential positive performance outcomes from the chocolate milk treatment may be due to an enhanced pre-exercise hydration status or improved exercise metabolism.

NCT ID: NCT01360333 Completed - Dehydration Clinical Trials

Oral Fluid Volume Expansion

OFVEX
Start date: May 2011
Phase: N/A
Study type: Interventional

When subjected to fluid loss or fluid deficiency irrespective of disease or environmental factors it is discussed how to rehydrate or how to hydrate prophylactic. In medical care it is common to give infusions. However it has increasingly become common to hydrate the patient through the mouth even early after bowel surgery. Moreover it is more simple to provide energy the natural way. Which fluid to give, depends on several factors such as possibility to drink, the volume and emptying of the stomach as well as the fluid absorption in the bowel. The provided fluid can also influence this process depending on temperature, osmolality/tonicity and composition (carbohydrates or salts). In this study we wish to study the speed with which the provided fluid is absorbed by the bowels and how fast the fluid is distributed to the different body compartments depending on it's composition. The three fluids will be either tap water, high sodium chloride and a carbohydrate rich fluid.

NCT ID: NCT00143754 Terminated - Hydration Clinical Trials

Effect of Chronic Oral Hydration in Patients With Recurrent Unexplained Syncope

Start date: n/a
Phase: Phase 3
Study type: Interventional

Beneficial effect of chronic hydration with salt supplementation in patients with recurrent unexplained syncope is not established. We sought to determine if chronic oral rehydration with salt supplementation improved the tolerance and hemodynamic responses of patients with unexplained recurrent syncope.